<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <meta name="geometry" content="diagram">
  <link rel="stylesheet" href="./assets/common.css">
    <link rel="stylesheet" href="./assets/info.css">
  <title>point_circle</title>
  <style>
	#map { position:absolute; top:0; bottom:0; width:100%; }
  .amap-maps {
     cursor: auto !important
  }
  </style>
</head>

<body>
<div id="map"></div>
<script src="https://webapi.amap.com/maps?v=1.4.8&key=15cd8a57710d40c9b7c0e3cc120f1200&plugin=Map3D"></script>
<script src="./assets/jquery-3.2.1.min.js"></script>
<script src="./assets/dat.gui.min.js"></script>
<script src="../build/L7.js"></script>
<script>
var radius = 0.2;
 
function pointOnCircle(angle) {
return {
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [
         120.19382669582967 + Math.cos(angle) * radius,
          30.258134 + Math.sin(angle) * radius
        ]
      }
    }
  ]
 }
}
const scene = new L7.Scene({
  id: 'map',
  mapStyle: 'light', // 样式URL
  center: [ 120.19382669582967, 30.258134 ],
  pitch: 0,
  zoom: 2,
  maxZoom:20,
  hash:true,
  minZoom:0,
});
window.scene = scene;
scene.on('loaded', () => {
    const circleLayer = scene.PointLayer({
      zIndex: 0,
    })
    .source(pointOnCircle(0))
    .shape('circle')
    .size(10) // default 1
    .active(true)
    .color('#2894E0')
    .style({
      stroke: 'rgb(255,255,255)',
      strokeWidth: 1,
      opacity: 0.8
    })
     .render();

  function animateMarker(timestamp) {
   
      circleLayer.setData(pointOnCircle(timestamp / 1000));
      requestAnimationFrame(animateMarker);
  }
   animateMarker(0);
   
   /**
   const layerText =  scene.PointLayer({
      zIndex: 3
    })
    .source(circleLayer.layerSource)
    .shape('point_count', 'text')
    .active(true)
    .size('point_count', [ 0, 16]) // default 1
    .color('#f00')
    .style({
      stroke: '#999',
      strokeWidth: 0,
      opacity: 1.0
    })
     .render();
    console.log(layerText);

  });
  **/
    
});

</script>
</body>
</html>

